Revise processed ITR for AY 2017-18

Hello friends, I want to revise itr1 for ay 2017-18 which is already processed and tds amount is received in bank account. Now i want to file itr3 but dont understand how to adjust tds amount showing in refund column. i already received refund and i just want to add income which was missed. should i skip tds amount in tds column, even after revision my total income is below 2.50 lakh. plz suggest.